PLATE XXIII 
C. M. Bkard 
1. Sifniftium griseicoUis. Becker 
2. Stmu/ium griseicoUis, adult 
3. Simulium damnosum, Theob 
Illustrations are natural size unless otherxuise indicated 
. Larvte and pup» on a blade of grass -4. Simnlinvi griseicoUis, 
5. Simulium damnosum, larva.* 
..adult (i. Simulium griseicoUis, 
7. Simulium damnosum, pupa in cocuon 
